Wall clock



FIG. 1 is a front elevational view of a wall clock showing my new design;

FIG. 2 is a front elevational view of another embodiment of my new design of FIG. 1;

FIG. 3 is a right side elevational view typical of both embodiments of my new design, the top, bottom, and left side views being substantially similar thereto.

The rear of the claimed design is substantially plain and unornamented and has thereon a conventional clock mechanism. 

The ornamental design for a wall clock, as shown and described. 